diff --git a/admin_interface/static/admin/js/popup_response.js b/admin_interface/static/admin/js/popup_response.js
index c85e71b..fb5e192 100644
--- a/admin_interface/static/admin/js/popup_response.js
+++ b/admin_interface/static/admin/js/popup_response.js
@@ -2,49 +2,42 @@
 
     'use strict';
 
-    function getModalWindowData()
-    {
-        var windowRef = window;
-        var windowName = windowRef.name;
-        var widgetName = windowName.replace(/^(change|add|delete|lookup)_/, '');
-        var modalRef = {};
-        var openerRef = windowRef.opener;
-        if (!openerRef) {
-            openerRef = windowRef.parent;
-            modalRef = {
-                name: openerRef.id_to_windowname(widgetName),
-                close: function() {
-                    openerRef.dismissRelatedObjectModal();
-                }
-            };
-        }
-        return { opener:openerRef, modal:modalRef };
+    var windowRef = window;
+    var windowName, widgetName;
+    var openerRef = windowRef.opener;
+    if (!openerRef) {
+        // related modal is active
+        openerRef = windowRef.parent;
+        windowName = windowRef.name;
+        widgetName = windowName.replace(/^(change|add|delete|lookup)_/, '');
+        windowRef = {
+            name: openerRef.id_to_windowname(widgetName),
+            close: function() {
+                openerRef.dismissRelatedObjectModal();
+            }
+        };
     }
 
-    var modalData = getModalWindowData();
-    var modalRef = modalData['modal'];
-    var openerRef = modalData['opener'];
-
+    // default django popup_response.js
     var initData = JSON.parse(document.getElementById('django-admin-popup-response-constants').dataset.popupResponse);
-    // console.log(initData);
     switch (initData.action) {
         case 'change':
             if (typeof(openerRef.dismissChangeRelatedObjectPopup) === 'function') {
-                openerRef.dismissChangeRelatedObjectPopup(modalRef, initData.value, initData.obj, initData.new_value);
+                openerRef.dismissChangeRelatedObjectPopup(windowRef, initData.value, initData.obj, initData.new_value);
             }
             break;
         case 'delete':
             if (typeof(openerRef.dismissDeleteRelatedObjectPopup) === 'function') {
-                openerRef.dismissDeleteRelatedObjectPopup(modalRef, initData.value);
+                openerRef.dismissDeleteRelatedObjectPopup(windowRef, initData.value);
             }
             break;
         default:
             if (typeof(openerRef.dismissAddRelatedObjectPopup) === 'function') {
-                openerRef.dismissAddRelatedObjectPopup(modalRef, initData.value, initData.obj);
+                openerRef.dismissAddRelatedObjectPopup(windowRef, initData.value, initData.obj);
             }
             else if (typeof(openerRef.dismissAddAnotherPopup) === 'function') {
                 // django 1.7 compatibility
-                openerRef.dismissAddAnotherPopup(modalRef, initData.value, initData.obj);
+                openerRef.dismissAddAnotherPopup(windowRef, initData.value, initData.obj);
             }
             break;
     }